2-pyridyl-3,3'-dimethyl-4,4'-diethyl-5,5'-dicarbethoxy-2,2'-dipyrrolylmethane 、
copper(ll) bromide 在
Et
3N 作用下,
以
甲醇 为溶剂,
以45%的产率得到dicopper;ethyl 5-[(5-ethoxycarbonyl-4-ethyl-3-methylpyrrol-1-id-2-yl)-pyridin-2-ylmethyl]-3-ethyl-4-methylpyrrol-1-ide-2-carboxylate